:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --fg: #1d1d1f;
  --muted: #6e6e73;
  --accent: #0a84ff;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #000000; --fg: #f5f5f7; --muted: #98989d; }
}
html { background: var(--bg); color: var(--fg); }
body { margin: 0; font: 17px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif; }
main { max-width: 680px; margin: 0 auto; padding: 32px 16px 64px; }
h1 { font-size: 30px; line-height: 1.2; margin: 4px 0 8px; }
h2 { font-size: 21px; margin: 32px 0 8px; }
h3 { font-size: 17px; margin: 24px 0 4px; }
a { color: var(--accent); }
.kicker { color: var(--muted); font-size: 14px; font-weight: 600; text-transform: uppercase; letter-spacing: .04em; margin: 0; }
.updated, .small { color: var(--muted); font-size: 14px; }
li { margin: 4px 0; }